Fig. 1.

(A) The q moments of the Covid-19 cases and their scaling from 10 up to 2,600 km used in the determination of K(q). (B) The moment scaling function K(q); the convex shape indicates multifractality. (C) The fitted spectral slope at various dates. (D) Example multifractal field generated using the UM model using the parameter values estimated from the population. Notice that both K(q) and Fourier spectral slope approach that of the underlying population, indicating increased spatial correlation that trends toward a “saturated” threshold set by the population agglomeration.